Zobrazeno 1 - 10
of 50
pro vyhledávání: '"F, Lapa"'
Publikováno v:
SciPost Physics, Vol 11, Iss 5, p 086 (2021)
We propose a platform for braiding Majorana non-Abelian anyons based on a heterostructure between a $d$-wave high-$T_c$ superconductor and a quantum spin-Hall insulator. It has been recently shown that such a setup for a quantum spin-Hall insulator l
Externí odkaz:
https://doaj.org/article/a9a9963e013c434f859116a16c50f1df
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 7, Iss 2B (2019)
In this work we solve the space kinetic diffusion equation in a one-dimensional geometry considering a homogeneous domain, for two energy groups and six groups of delayed neutron precursors. The proposed methodology makes use of a Taylor expansion in
Externí odkaz:
https://doaj.org/article/7103fde91e724f71866c0d0672689852
Autor:
Matthew F. Lapa
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033309 (2020)
The study of topological superconductivity is largely based on the analysis of mean-field Hamiltonians that violate particle number conservation and have only short-range interactions. Although this approach has been very successful, it is not clear
Externí odkaz:
https://doaj.org/article/ab390a34b119494dbc8f79701b774f53
Autor:
Matthew F. Lapa, Michael Levin
Publikováno v:
Physical review letters. 124(25)
Most theoretical studies of topological superconductors and Majorana-based quantum computation rely on a mean-field approach to describe superconductivity. A potential problem with this approach is that real superconductors are described by number-co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6069df93591d1f0e072aef4e24bbe963
https://pubmed.ncbi.nlm.nih.gov/32639770
https://pubmed.ncbi.nlm.nih.gov/32639770
Autor:
Matthew F. Lapa
Publikováno v:
Physical Review B. 99
We review the parity anomaly of the massless Dirac fermion in $2+1$ dimensions from the Hamiltonian, as opposed to the path integral, point of view. We have two main goals for this paper. First, we hope to make the parity anomaly more accessible to c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0198707efef511abf5b31c3015fe46eb
https://doi.org/10.1103/physrevb.99.235144
https://doi.org/10.1103/physrevb.99.235144
Autor:
Matthew F. Lapa, Michael Levin
We study anomalies in time-reversal ($\mathbb{Z}_2^T$) and $U(1)$ symmetric topological orders. In this context, an anomalous topological order is one that cannot be realized in a strictly $(2+1)$-D system but can be realized on the surface of a $(3+
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b493aad36ef72484ceef04e48b9b0588
http://arxiv.org/abs/1905.00435
http://arxiv.org/abs/1905.00435
Autor:
Matthew F. Lapa, Taylor L. Hughes
Publikováno v:
Physical Review B. 99
We study the semi-classical theory of wave packet dynamics in crystalline solids extended to include the effects of a non-uniform electric field. In particular, we derive a correction to the semi-classical equations of motion (EOMs) for the dynamics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd86bbaf65667ddfc39a0127e7e263e1
https://doi.org/10.1103/physrevb.99.121111
https://doi.org/10.1103/physrevb.99.121111
Quantum Hall matrix models are simple, solvable quantum mechanical systems which capture the physics of certain fractional quantum Hall states. Recently, it was shown that the Hall viscosity can be extracted from the matrix model for Laughlin states.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e3ab0115c9ec978b661271573ad7d52
Publikováno v:
Physical Review B, vol 99, iss 7
We investigate the recently introduced geometric quench protocol for fractional quantum Hall (FQH) states within the framework of exactly solvable quantum Hall matrix models. In the geometric quench protocol a FQH state is subjected to a sudden chang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9f6088144bf4a2ea39e7c3e86b6ed9c
https://escholarship.org/uc/item/08g080wm
https://escholarship.org/uc/item/08g080wm
Autor:
Taylor L. Hughes, Matthew F. Lapa
We study geometric aspects of the Laughlin fractional quantum Hall (FQH) states using a description of these states in terms of a matrix quantum mechanics model known as the Chern-Simons matrix model (CSMM). This model was proposed by Polychronakos a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5a1fb05d2addb9510537f90db26a3ef
http://arxiv.org/abs/1802.10100
http://arxiv.org/abs/1802.10100